Sodium sulfate decahydrate → tert-butyl N-(1-(hydroxymethyl)cyclobutyl)carbamate

Participants

Reaction Conditions

Reaction Steps

In a 15 ml round-bottomed flask, 1-tert-butoxycarbonylamino-cyclobutanecarboxylic acid ethyl ester (180 mg, 0.74 mmol) was dissolved in THF (4 ml). The colorless solution was cooled to 0° C. and lithium aluminum hydride (1.0 M in THF, 0.78 ml, 0.78 mmol) was added dropwise. The reaction mixture was stirred at 0° C. for 1.5 h then sodium sulfate decahydrate was carefully added. When gas evolution has ceased, the ice bath was removed, sodium sulfate was added and the mixture was stirred for 30 min at room temperature. The suspension was filtered over Celite and rinsed with ethyl acetate/methanol. The filtrate was concentrated to give (1-hydroxymethyl-cyclobutyl)-carbamic acid tert-butyl ester as an off-white waxy solid which was used without further purification.

Provenance & Evidence